Question

24/9 - a/3 = 36/27

7/5 - a/4 = 13/20

Answer 1

\(\dfrac{24}{9}+\dfrac{-a}{3}=\dfrac{36}{\dfrac{277}{5}}+\dfrac{-a}{4}=\dfrac{13}{20}\)

Answer 2

24/9 - a/3 = 36/27

           a/3 = 24/9 - 36/27

            a/3 =   4/3

vậy a là 4

 

Answer 3

7/5 - a/4 = 13/20

         a/4 = 7/5 - 13/20

         a/4 =    5/4

vậy a = 5

Answer 4

24/9 - a/3 = 36/27

           a/3 = 24/9 - 36/27

            a/3 =   4/3

7/5 - a/4 = 13/20

         a/4 = 7/5 - 13/20

         a/4 =    5/4